Celotex Isover

ISOVER Spacesaver Plus

ISOVER Spacesaver Plus is a glass mineral wool roll with a thermal conductivity of 0.040W/m.K. It is suitable for loft insulation, where it is typically installed in a minimum of two layers, the first layer between the joists and the subsequent layer(s) cross-laid over joists. ISOVER Spacesaver Plus can also be installed between the joists in suspended timber ground floors and flat roofs.

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  • Pitched Roof – Between and Over Joists
  • Flat roof – Between joists
  • Ground Floor Suspended Timber – Between Joists

Product Features

  • Glass mineral wool rolls pre-perforated to 3x386mm and 2x580mm widths
  • Manufactured from up to 75% recycled glass
  • A+ generic rating within the BRE Global Green Guide
  • Achieves Eurofins Gold certification, the highest accreditation for indoor air quality

Product Properties

  • Board / Roll size: Width 1160mm, Length 3500–7000mm
  • Thickness : 100-200mm
  • Material: Glass mineral wool

Product Performance

  • Lambda: 0.040 W/m.K
  • Reaction to Fire: Euroclass A1 Reaction to Fire classification, according to EN 13501-1

Product Benefits

  • Improved thermal conductivity (0.040 W/m.K) to help improve the overall U-value for the application or decrease insulation thickness
  • Helps to reduce heat loss within the building envelope and decrease energy costs
  • Economical and easy-to-install with minimal waste
  • Pre-perforated widths to fit common joist spacing
  • Non-combustible - achieves Euroclass A1 Reaction to Fire classification